These muscles move when you decide to move them such as those in your arms and legs.
What are voluntary muscles?
100
This organ is known as the control center of the entire body.
What is the brain?
100
The transparent front part of the eye, light passes through and is refracted.
What is the cornea?
200
Functions as the "brain" of the cell, directing cell activity.
What is the nucleus?
200
The name of the bone on the top of your head that protects your brain.
What is the skull?
200
These muscles move without you having to think about it, like your heart and your diaphragm.
What are involuntary muscles?
200
This cord-like structure runs down your back through the center of your vertebrae.
What is the spinal cord?
200
Dark circle in the center of the eye. It is actually a hole which allows light to pass into the eye.
What is the pupil?
300
Part of the cell that breaks down food to provide energy for the cell, also called the "power-house of the cell."
What are mitochondria?
300
Bones in your fingers, toes, hands and feet that can move in many different ways, which help you to pick things up and walk smoothly.
What are short bones?
300
The names of the pairs of muscles in your upper arm.
What are the biceps and triceps?
300
Its first job is to send information from the brain to the body and its second job is to send information from various parts of the body to the brain.
What are the two main functions of the nervous system?
300
A snail-shaped tube in the ear filled with liquid. Converts sound waves into electrical impulses and send to the auditory nerve then onto the brain.
What is the cochlea?
400
The part of the cell that acts like the skin of the cell.
What is the cell membrane?
400
The center of long bones that produces red and white blood cells.
What is bone marrow?
400
A type of involuntary muscle that line your digestive tract and automatically move the food through your intestines.
What is smooth muscle?
400
One of the three main parts of the brain. This is the upper and largest part that controls thought, memory, and learned behavior. It is used for decision making, thinking and speech.
What is the cerebrum?
400
Also known as taste buds, bumps on your tongue surrounded by a trench that traps saliva.
What are papillae?
500
Several tissues working together (hint, not referring to the musical instrument that's kind of like a piano).
What is an organ?
500
The largest and strongest bone in the body extending from the hip to the knee.
What is the femur?
500
These cord-like tissues attach muscles to bone.
What are tendons?
500
The second major part of the brain. It is the lower part and controls balance, voluntary muscles and movement.
What is the Cerebellum?
500
These are molecules in the air that evaporate easily. When these molecules bond with olfactory hairs in your nasal passage a chemical reaction is produced which helps your body to smell an odor.